#!/usr/bin/env python3

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; specifically version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# See LICENSE for more details.
#
# Copyright: Red Hat Inc. 2021
# Author: Cleber Rosa <cleber@redhat.com>

#
# Simple script that, given Python file containing unittests, returns the canonical
# location of each test, each one on its own line.
#
# Warning: this script uses Python's unittest TestLoader.discover()
# and will load (and thus eval) the Python files given in the command
# as arguments.
#

import os
import sys
import unittest


def get_tests(suite):
    result = []
    if hasattr(suite, '__iter__'):
        for suite_or_test in suite:
            result.extend(get_tests(suite_or_test))
    else:
        result.append(suite)
    return result


if __name__ == '__main__':
    if sys.version_info < (3, 8, 0) or sys.version_info >= (3, 9, 6):
        abs_path = os.path.abspath(__file__)
        top_path = os.path.dirname(os.path.dirname(os.path.dirname(abs_path)))
        sys.path.insert(0, top_path)
    test_module_paths = sys.argv[1:]
    result = []
    loader = unittest.TestLoader()
    for test_module_path in test_module_paths:

        start_dir, pattern = os.path.split(test_module_path)
        suite = loader.discover(start_dir, pattern)
        tests = get_tests(suite)

        module_name = start_dir.replace(os.path.sep, ".")
        result.extend(["%s.%s" % (module_name, test.id()) for test in tests])

    if result:
        print("\n".join(result))

    for err in loader.errors:
        print("ERROR: ", err, file=sys.stderr)
